A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Dept. of the Navy Classification: Washers other than lock washers, iron or steel
NSN 6610-01-316-1830
NSN 5915-00-530-5067
NSN 5965-00-931-8446
NSN 6135-01-468-6491
NSN 5930-01-498-1918
NSN 6650-01-495-1269
NSN 6620-01-064-0366
NSN 6105-01-540-6031
NSN 5950-01-303-6078
NSN 6320-01-242-8355
NSN 5930-01-142-3325
NSN 5965-01-508-7940